Purification and biochemical characterization of recombinant hirudin produced by Saccha-romyces cerevisiae - Riehl-Bellon, N; Carvallo, D; Acker, M; van Dorsselaer, A; Marquet, M; Loison, G; Lemoine, Y; Brown, S W; Courtney, M; Roitsch, C (Biochemistry, 1989)